document.write( "Question 822074: A can do a piece of work in 30 days,and B can do the same work in 40 days,if both do together then how many days it takes to complete the same work.
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Algebra.Com's Answer #494914 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 1/30+1/40=1/x \n" ); document.write( "4/120+3/120=1/x \n" ); document.write( "7/120=1/x \n" ); document.write( "x=120/7=17.14\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |